tools/voucher_trace.d

   1 #!/usr/sbin/dtrace -s
   2
   3 /*
   4  * Copyright (c) 2017 Apple Inc. All rights reserved.
   5  *
   6  * @APPLE_APACHE_LICENSE_HEADER_START@
   7  *
   8  * Licensed under the Apache License, Version 2.0 (the "License");
   9  * you may not use this file except in compliance with the License.
  10  * You may obtain a copy of the License at
  11  *
  12  *     http://www.apache.org/licenses/LICENSE-2.0
  13  *
  14  * Unless required by applicable law or agreed to in writing, software
  15  * distributed under the License is distributed on an "AS IS" BASIS,
  16  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  17  * See the License for the specific language governing permissions and
  18  * limitations under the License.
  19  *
  20  * @APPLE_APACHE_LICENSE_HEADER_END@
  21  */
  22
  23 /*
  24  * Usage: voucher_trace.d -p [pid]
  25  *        traced process must have been executed with
  26  *        DYLD_LIBRARY_PATH=/usr/lib/system/introspection or with
  27  *        DYLD_IMAGE_SUFFIX=_profile or DYLD_IMAGE_SUFFIX=_debug
  28  */
  29
  30 #pragma D option quiet
  31 #pragma D option zdefs
  32 #pragma D option bufsize=16m
  33
  34 BEGIN {
  35         printf("Starting to trace voucher operations...\n");
  36 }
  37
  38 voucher$target:libdispatch*.dylib::create
  39 {
  40         printf("ALLOC   voucher 0x%p, thread %#llx, ref 1, port %#x, aid %#llx", arg0, tid, arg1, arg2);
  41         ustack(10);
  42         printf("\n")
  43 }
  44
  45 voucher$target:libdispatch*.dylib::dispose
  46 {
  47         printf("FREE    voucher 0x%p, thread %#llx, ref 0", arg0, tid);
  48         ustack(10);
  49         printf("\n")
  50 }
  51
  52 voucher$target:libdispatch*.dylib::retain
  53 {
  54         printf("RETAIN  voucher 0x%p, thread %#llx, ref %d", arg0, tid, arg1);
  55         ustack(10);
  56         printf("\n")
  57 }
  58
  59 voucher$target:libdispatch*.dylib::release
  60 {
  61         printf("RELEASE voucher 0x%p, thread %#llx, ref %d", arg0, tid, arg1);
  62         ustack(10);
  63         printf("\n")
  64 }
  65
  66 voucher$target:libdispatch*.dylib::adopt
  67 {
  68         printf("ADOPT   voucher 0x%p, thread %#llx", arg0, tid);
  69         ustack(10);
  70         printf("\n")
  71 }
  72
  73 voucher$target:libdispatch*.dylib::orphan
  74 {
  75         printf("ORPHAN  voucher 0x%p, thread %#llx", arg0, tid);
  76         ustack(10);
  77         printf("\n")
  78 }